What is the traditional way to convert alternating current to DC? What is the machine doing this function?
Now with the general switching power supply What is the difference and what benefits compared to the traditional switch of this DC will be the machine?
Conventionally, the method of alternating current for alternating current is rectified, and the machine that performs this function is called a rectifier.
Now the general switching power supply is only used to complete the rectification, at a higher frequency of the inverter, and then rectify the process.
Compared with the traditional rectifier circuit, its benefits are small size, light weight, high conversion efficiency, power quality and stability.
The traditional method is the low-frequency transformer buck, and then diode rectifier
Switching power supplies are typically controlled by pulse width modulation (PWM) control ICs and MOSFETs
The advantages are small, lightweight and efficient
Conventionally, the method of converting alternating current into alternating current (DC) is to convert the AC voltage through the transformer and then through the rectifier filter circuit to DC. The function of this machine is called linear DC power supply. Now widely used high frequency switching power supply, Words:
Linear power technology is very mature, low production costs, can achieve a high degree of stability, ripple smaller, their own interference and noise are relatively small, but because the work in the frequency (50Hz), the transformer volume is relatively large, efficiency Low (generally full load work efficiency is only about 80%) the overall size is larger, it is more bulky and the input voltage range is high; and switching power supply is working high frequency state, the transformer is relatively small, relatively light, but the output The ripple is larger than the linear power supply, but because of its simple structure, low cost and high efficiency (the efficiency of switching power supply on the market can reach more than 90%) in many occasions has replaced the linear power supply, is the future trend of power development.
The traditional method is to use the diode to pay attention to wave, it becomes a DC
This kind of electronic component called rectifier
Switching power supply and rectifier different and benefits: switching power supply can stabilize the current and voltage, the better
